SQL Script Dependencies and Contraints -> OUT to pull into modified db

I have 2 databases... One original and one modified (they are UGLY) :)
My issue is that after the modification to the 'modified' one, alot of the contraints/dependencies seem to have been exluded or rearranged....
150+ tables datatype change from int to varchar(30) was the modification (dont ask, as I inherited this with much resistance... :))
What I would like to be able to do:
1. script the contraints and foriegn key stuff (I am not a sql dba at all) from the original
2. change the script if needed to reflect the varch(30)
3. run the cript on the modified db....

You can generate scripts by right-clicking over databbase name in SQL Server Enterprise Manager (SQL Server 2000) or in SQL Server Management Studio (SQL Servr 2005) and then choose "Generate SQL Scripts...".
After you generate script use a file editor and with a simple find/replace modify it.
Save it and run it over new DB.

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